| Most common failures | No# failures |
|---|
| Registration plate issues | 7 |
| Headlamp aim out of alignment | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock headstock shield fouling steering movement (2.1.4 (b)) | 1 |
| Centre Headlamp not working on main beam |1.7.5a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Axle beam has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 1 |
| Rear brake binding | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Wheel nut|s| loose |4.2.A.1e| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies front brake light wires broken |1.3.1a| | 1 |
| Horn control not functioning. horn not working |1.7.2b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies lever |1.3.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front Brake pedal insecure |3.1.2a| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |